创建名为'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping'的bean时出错

Question

使用jdk 1.8

1. 用SpringMVC-4.3.3
2. SpringCore-4.3.3
3. 的javax.servlet-API-3.0.1
4. 弹簧数据JPA:1.10.4
5. 休眠-的EntityManager:4.2.5.Final
6. 休眠核心:4.2.5.Final
7. Java的简单日志外观:1.6.1

我遇到了这样的错误

org.springframework.beans.factory.BeanCreationException:创建名为'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping'的bean时出错:init方法的调用失败; 嵌套异常是java.lang.NoSuchMethodError:org.springframework.core.annotation.AnnotatedElementUtils.hasAnnotation

我的问题:
为什么错误的鼓励和如何解决它？

web.xml中

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
     version="3.1">
<servlet>
    <servlet-name>product</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>product</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

产品servlet.xml中

<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/jsp/"/>
    <property name="suffix" value=".jsp"/>
</bean>
<context:component-scan base-package="com.kopylov.spring.controller" />
<mvc:annotation-driven/>

调节器

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class ProductController {

@RequestMapping
public String showHome(){
    return "home";
}

}

AppInitializer

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

公共类AppInitializer扩展AbstractAnnotationConfigDispatcherServletInitializer {

@Override
protected Class<?>[] getRootConfigClasses(){
    return new Class<?>[]{
            DataConfig.class
    };
}

@Override
protected Class<?>[] getServletConfigClasses(){
    return new Class<?>[0];
}

@Override
protected String[] getServletMappings(){
    return new String[0];
}

}

DataConfig

@Configuration
@EnableTransactionManagement
@ComponentScan("com.kopylov.spring")
@PropertySource("classpath:/com/kopylov/spring/resources/app.properties")
@EnableJpaRepositories("com.kopylov.spring.repository")
public class DataConfig {
private static final String PROP_DATABASE_DRIVER = "db.driver";
private static final String PROP_DATABASE_PASSWORD = "db.password";
private static final String PROP_DATABASE_URL = "db.url";
private static final String PROP_DATABASE_USERNAME = "db.username";
private static final String PROP_HIBERNATE_DIALECT = "db.hibernate.dialect";
private static final String PROP_HIBERNATE_SHOW_SQL = "db.hibernate.dialect";
private static final String PROP_ENTITYMANAGER_PACKAGES_TO_SCAN = "db.entitymanager.packages.to.scan";
private static final String PROP_HIBERNATE_HBM2DDL_AUTO = "db.hibernate.hbm2ddl.auto";

@Resource
private Environment env;

@Bean
public DataSource dataSource(){
    DriverManagerDataSource dataSource = new DriverManagerDataSource();
    dataSource.setDriverClassName(env.getRequiredProperty(PROP_DATABASE_DRIVER));
    dataSource.setUrl(env.getRequiredProperty(PROP_DATABASE_URL));
    dataSource.setUsername(env.getRequiredProperty(PROP_DATABASE_USERNAME));
    dataSource.setPassword(env.getRequiredProperty(PROP_DATABASE_PASSWORD));

    return dataSource;
}

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(){
    LocalContainerEntityManagerFactoryBean emfb = new LocalContainerEntityManagerFactoryBean();
    emfb.setDataSource(dataSource());
    emfb.setPersistenceProviderClass(HibernatePersistence.class);
    emfb.setPackagesToScan(env.getRequiredProperty(PROP_ENTITYMANAGER_PACKAGES_TO_SCAN));
    emfb.setJpaProperties(getHibernateProperties());
    return emfb;
}

@Bean
public JpaTransactionManager transactionManager(){
    JpaTransactionManager transactionManager = new JpaTransactionManager();
    transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
    return transactionManager;
}

private Properties getHibernateProperties(){
    Properties properties = new Properties();
    properties.put(PROP_HIBERNATE_DIALECT, env.getRequiredProperty(PROP_HIBERNATE_DIALECT));
    properties.put(PROP_HIBERNATE_SHOW_SQL, env.getRequiredProperty(PROP_HIBERNATE_SHOW_SQL));
    properties.put(PROP_HIBERNATE_HBM2DDL_AUTO, env.getRequiredProperty(PROP_HIBERNATE_HBM2DDL_AUTO));
    return properties;
}

Answer 1

我认为您的调度程序在 web.xml 中配置不正确。您没有任何<init-param>标签。查看文档

http://docs.spring.io/spring-flex/docs/1.0.x/reference/html/ch02s02.html

尝试编辑为：

<servlet> <servlet-name>product</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/product-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet>

编辑其他信息 另外，我相信您需要向 @RequestMapping 注释添加一些映射，请参阅链接：

http://docs.spring.io/spring/docs/current/spring-framework-reference/html/mvc.html#mvc-ann-requestmapping